Analysis
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max time kernel
132s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
25-06-2022 05:39
Static task
static1
Behavioral task
behavioral1
Sample
f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92.exe
Resource
win7-20220414-en
General
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Target
f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92.exe
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Size
2.2MB
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MD5
1dc4243c8c39d2d517e5dee12c09abf4
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SHA1
33d31db1e34d6f0f63abe4cbe62913b34f4517a7
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SHA256
f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92
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SHA512
bde9761291a98bb5733a64ba2b4938b20e368e8f353d1238981498e5af97e17ff81d4944d479ac1e346432da5187f861fa56be46a2f7501ccc2cc93668b18bb6
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exeDesktopLayer.exepid process 1432 f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exe 4656 DesktopLayer.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exe upx C:\Users\Admin\AppData\Local\Temp\f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral2/memory/1432-135-0x0000000000400000-0x000000000042E000-memory.dmp upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral2/memory/4656-137-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
Processes:
f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\pxB9FE.tmp f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exe -
Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3297517736" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "362902158" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{EFD8A7D4-F44C-11EC-AD90-7E7E0F8D8E49} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3310641938" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3297517736" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30967897" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30967897" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30967897" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
DesktopLayer.exepid process 4656 DesktopLayer.exe 4656 DesktopLayer.exe 4656 DesktopLayer.exe 4656 DesktopLayer.exe 4656 DesktopLayer.exe 4656 DesktopLayer.exe 4656 DesktopLayer.exe 4656 DesktopLayer.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
iexplore.exepid process 1160 iexplore.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 1160 iexplore.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92.exeiexplore.exeIEXPLORE.EXEpid process 4744 f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92.exe 4744 f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92.exe 1160 iexplore.exe 1160 iexplore.exe 1384 IEXPLORE.EXE 1384 IEXPLORE.EXE 1384 IEXPLORE.EXE 1384 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92.exef3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 4744 wrote to memory of 1432 4744 f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92.exe f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exe PID 4744 wrote to memory of 1432 4744 f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92.exe f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exe PID 4744 wrote to memory of 1432 4744 f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92.exe f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exe PID 1432 wrote to memory of 4656 1432 f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exe DesktopLayer.exe PID 1432 wrote to memory of 4656 1432 f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exe DesktopLayer.exe PID 1432 wrote to memory of 4656 1432 f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exe DesktopLayer.exe PID 4656 wrote to memory of 1160 4656 DesktopLayer.exe iexplore.exe PID 4656 wrote to memory of 1160 4656 DesktopLayer.exe iexplore.exe PID 1160 wrote to memory of 1384 1160 iexplore.exe IEXPLORE.EXE PID 1160 wrote to memory of 1384 1160 iexplore.exe IEXPLORE.EXE PID 1160 wrote to memory of 1384 1160 iexplore.exe IEXPLORE.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92.exe"C:\Users\Admin\AppData\Local\Temp\f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92.exe"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exeC:\Users\Admin\AppData\Local\Temp\f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"4⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1160 CREDAT:17410 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Program Files (x86)\Microsoft\DesktopLayer.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Program Files (x86)\Microsoft\DesktopLayer.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776Filesize
471B
MD54b5f63131c2ad19a1b25b9c790cb101f
SHA123ffbecbbc2c90699e632a1bb789f5e6c6975fbe
SHA256f712507488d39ee6f3913255fa4e3f64b7f8d7be0c920c02546e3647f87603da
SHA512dc1d4c9b5157e79230fa05b1bde5e76f1ab2bdb08883ec74cccedc3ef88b1dff05fe91b36ab72086be6899d70fa9056d7c19fa0f285578b7cfa141f9e2cb6240
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776Filesize
434B
MD5f9eb274bf17040ad0d40ff2626e6f4d0
SHA101cb3c9a07776aa35d1b95112e9aa997ed620623
SHA256337b10f9f01c5a7f48f988a9ab2364e42bd9fba3096a9e489aac41f6464dcd3e
SHA51223f6a6e5c8edcc726c9147337f62da58a3ab3a8255b9de1f4a28ac18937b06a20b56588d4c0ffb85e4aa541f6b945312efc34a1fa7a1cbe5d963b77311c3a2ff
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C:\Users\Admin\AppData\Local\Temp\f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\Local\Temp\f3abcc258143d2a399f92aa58531fd2c13e5d16c7fa7ea351d08108a5b35da92Srv.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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memory/1432-130-0x0000000000000000-mapping.dmp
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memory/1432-135-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/4656-133-0x0000000000000000-mapping.dmp
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memory/4656-137-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/4744-138-0x0000000000400000-0x000000000063B000-memory.dmpFilesize
2.2MB
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memory/4744-139-0x0000000000400000-0x000000000063B000-memory.dmpFilesize
2.2MB